Ads pretty much every time you touch the screen! You can choose a category like pronouns or greetings. You are then given a list of words or phrases for that category. Touching the word or phrase would, I would think, tell you how to pronounce it in Hebrew. However, it tells you the English phrase which, again I would think, would be entirely unnecessary for an English speaking person trying to learn Hebrew. I deleted the app in less than five minutes.